NAICS 333923: Overhead Traveling Crane
This U.S. industry comprises establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems.

Illustrative Examples:

Aerial work platforms manufacturing
Automobile wrecker (i.e., tow truck) hoists manufacturing
Block and tackle manufacturing
Metal pulleys (except power transmission) manufacturing
Winches manufacturing 

ExioML sector: Machinery and equipment n.e.c. (29)
Region: US | Year: 2022
Sector value added: 174260.755798 M EUR | Employment: 1142.33526664 thousand persons
Sector GHG emissions: 9968187082.41 kg CO2 eq | Energy carrier net total: 290453.888492 TJ | Carbon intensity: 0.05720270772821017

Company: Steward Machine Co Inc
Steward Machine is the largest manufacture of moveable bridge machinery in the world as well as a leading supplier in the lock dam, heavy industrial equipment and machinery, defense, aerospace, automotive, power suppliers, navy, sewage and waste industries.